"We expect the waiting period for the diesel Verna to drop from six months to two to three months and for the new iGen i20 to about a month," said Arvind Saxena, director, marketing and sales, Hyundai Motor India.

"The decision to increase supply of diesel cars follows the Union Budget which left the tax structure on passenger cars untouched," the company said in its statement on Monday.

Hyundai Motor said it has been able to enhance supply by ramping up diesel engine imports from south Korea.

In 2011 the company's domestic sales grew by 4.8 per cent at 373,709 units from 356,717 units in 2010.